How to Make Your Node.js Function Asynchronous and Avoid Returning Empty Objects

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Understanding the Problem

Why the Issue Occurs

A Solution: Making Your Function Asynchronous

Step 1: Refactor the Key Generation

To prevent duplicate keys, we need a different strategy for generating key names within the createResponse(rows) function. Here are some alternatives you might consider:

Using the Loop Index: One simple fix is to concatenate the loop index to the user name, ensuring uniqueness:

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Using the uuid Library: If you want to go the extra mile for truly unique identifiers, consider using the uuid library to generate unique keys. This approach guarantees that each key will be different, regardless of the data being processed.

Step 2: Update the Function

Here’s how you can update your createResponse function using the loop index method for clarity:

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Step 3: Make Your Function Asynchronous

To ensure that your function operates seamlessly, you might want to convert it into an asynchronous function, especially if you intend to await results or perform additional asynchronous operations:

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Step 4: Handle Errors Gracefully

Whenever you work with asynchronous code, it's crucial to handle potential errors effectively. You can use try-catch blocks to capture any exceptions thrown during execution:

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Conclusion